Atomizing structure, atomizer and aerosol generating device

ABSTRACT

An atomizing structure, an atomizer, and an aerosol generating device are provided. The atomizing structure includes a heating element and an atomizing core assembly including an atomizing portion and a guiding portion. The heating element is at least partially embedded in the atomizing portion, the atomizing portion is fixed in the guiding portion, the atomizing portion has an outer wall, the guiding portion has an inner wall portion, and the outer wall is in partial contacted with the inner wall portion, the guiding portion is in contact with an atomizing medium, and is configured to transport the atomizing medium to the atomizing portion through the inner wall portion and the outer wall in sequence, the outer wall forms a first atomizing surface, and a first air channel for transporting the aerosol generated by the first atomizing surface is provided between the outer wall and the inner wall portion.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority of Chinese Patent Application No. 2022100327018, filed on Jan. 12, 2022, entitled “ATOMIZING STRUCTURE, ATOMIZER AND AEROSOL GENERATING DEVICE”, the content of which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to a technical field of atomization, in particular to an atomizing structure, an atomizer, and an aerosol generating device.

BACKGROUND

Electronic atomizer mainly includes an atomizer and a power supply. The atomizer generally includes a liquid storing chamber and an atomizing structure. The liquid storing chamber is used to store an atomizing medium, the atomizing structure is configured to heat and atomize the atomizing medium to form an aerosol that can be inhaled by smokers. The power supply is configured to provide energy to the atomizing structure.

In the conventional technology, a heating element on the atomizing core is mounted on a liquid-guiding surface of a liquid-guiding element by printing, embedding, etc. or directly fixed to the liquid-guiding surface of the liquid-guiding element. With such a heating element fixing method, the heating element is in direct contact with the liquid- guiding surface. When the heating element is working, the heat generated by it will be directly transported to the liquid-guiding surface through an atomizing surface, and heat the atomizing medium in contact with a bottom position, so that it will not only cause excessive heat loss of the heating element, but also repeatedly heat the atomizing medium at the bottom position, which is not conducive to a storage of the atomizing medium.

SUMMARY

Accordingly, an atomizing structure, an atomizer, and an aerosol generating device are provided.

An atomizing structure includes an atomizing core assembly including an atomizing portion and a guiding portion, wherein the atomizing portion is fixed in the guiding portion, the atomizing portion has an outer wall, the guiding portion has an inner wall portion, and the outer wall is in partial contact with the inner wall portion, the guiding portion is in contact with an atomizing medium, and is configured to transport the atomizing medium to the atomizing portion through the inner wall portion and the outer wall in sequence, the outer wall forms a first atomizing surface configured to generate aerosol, and a first air channel for transporting the aerosol is provided between the outer wall and the inner wall portion; and a heating element at least partially embedded in the atomizing portion.

According to the above-mentioned atomizing structure, on the one hand, the first atomizing surface and the liquid-absorbing surface are physically isolated, the heating element indirectly contacts the atomizing medium in a liquid storing chamber through the guiding portion, so that there is a long distance between the heating element and the atomizing medium in the liquid storing chamber, so as to effectively isolate a heat transferring, which can avoid the deterioration of the atomizing medium in the liquid storing chamber caused by high temperature, and the entire atomizing structure can have high heating efficiency. On the other hand, the outer wall is in direct contact with the inner wall portion A, the guiding portion obtains the atomizing medium through the liquid-absorbing surface. The liquid guiding area is great and the liquid guiding is performed in all directions, which can effectively ensure sufficient liquid supply and ensure that the atomizing medium is smoothly transported to the heating element to obtain a large amount of atomization, which solves a problem of poor atomization effect and insufficient smoke volume of conventional atomization.

Further, in one of the embodiments, the guiding portion has an outer wall portion, the outer wall portion is provided with a liquid-absorbing surface.

In one of the embodiments, the outer wall is in surface contact with the inner wall portion, and the outer wall and the inner wall portion are tangent; or a shortest distance from an inner wall of the atomizing portion to an outer wall portion of the guiding portion is less than or equal to the sum of a distance from the inner wall to the outer wall and a distance from inner wall portion to the outer wall portion.

In one of the embodiments, at least two first air channels are provided.

In one of the embodiments, the at least two first air passages are evenly distributed.

In one of the embodiments, the atomizing portion has a central axis, and the at least two first air channels are evenly distributed relative to the central axis.

In one of the embodiments, the atomizing portion has an inner wall, the inner wall forms a second atomizing surface and a second air channel configured to transport the aerosol generated on the second atomizing surface.

In one of the embodiments, a bottom of the atomizing portion is provided with an avoiding groove, the first air channel is in fluid communication with the second air channel through the avoiding groove.

In one of the embodiments, a top portion of the atomizing portion is provided with a flowing area, the first air channel is in fluid communication with the second air channel through the flowing area.

In one of the embodiments, the atomization core assembly is provided with a limiting step above the atomization portion on the guiding portion.

An atomizer includes a liquid storing structure and the above-mentioned atomizing structure, the liquid storing structure is provided with a liquid storing cavity configured to accommodate the atomizing medium, and the guiding portion is in contact with the atomizing medium; the aerosol generated by the heating element passes through the first air channel and the second air channel, and flows out through the liquid storing structure.

In one of the embodiments, the liquid storing structure includes an upper sealing element, a lower sealing element, and a housing, the housing is provided with a mounting cavity, and the upper sealing element covers the housing and is partially mounted in the mounting cavity, the lower sealing element is mounted in the mounting cavity; the atomizing structure is provided with a middle sealing element and a ventilation tube, one end of the ventilation tube tightly abuts against the upper sealing element, the other end of the ventilation tube tightly abuts against the middle sealing element, and the ventilation tube abuts against the middle sealing element, the atomizing core assembly, the lower sealing element and the housing sequentially through the middle sealing element.

In one of the embodiments, the ventilation tube is provided with a main air channel, the upper sealing element is provided with a first communicating opening, the ventilation tube is at least partially located in the housing, the liquid storing cavity is formed in the mounting cavity and located between in the housing and the ventilation tube, the main air channel is in fluid communication with the first air channel and the second air channel to transport the aerosol, and the aerosol in the main air channel flows out through the first communicating opening.

In one of the embodiments, the atomizing structure further includes a mounting element and a sealing sleeve, the guiding portion is provided with a wire, the lower sealing element is provided with a mounting groove, the mounting element is sleeved on the wire and located in the lower sealing element, the sealing sleeve is sleeved on the lower sealing portion or sleeved in the mounting groove, the mounting element, the lower sealing element, and the sealing sleeve cooperate to enable the lower sealing element to tightly abut against the housing to seal the liquid storing cavity, so that the atomizing medium in the liquid storing cavity only contacts the liquid-absorbing surface of the guiding portion.

In one of the embodiments, the housing is provided with at least two electrode mounting seats, each of the electrode mounting seat is provided with an electrode element, the wire is electrically connected to the electrode element in the electrode mounting seat; the housing is provided with an air inlet, the air inlet is in fluid communication with the first air channel and the second air channel, respectively.

An aerosol generating device includes a power supply and the above-mentioned atomizer, the power supply is electrically connected to the atomizer for supplying power to the atomizer.

In one of the embodiments, the atomizer further comprising a nozzle structure, the power supply structure includes a casing, a bracket, a battery, a circuit board, a control element, a connecting end, and a bottom case, the casing is sleeve on a part of the housing, the nozzle structure is sleeve on a part of the housing, the upper sealing element, and the upper sealing element, the nozzle structure blocks the first liquid injecting hole and the second liquid injecting hole, the bracket is fixed in the casing, the battery is mounted to the bracket and is electrically connected to the electrode element, an airflow gap in fluid communication with the air inlet is formed between the bracket, the battery and the casing.

In one of the embodiments, the control element includes a button, a button base and a connector, the button is mounted to the button base and exposed outside the bottom case, the button base is fixed to the circuit board, the connector is electrically connected to the battery through the circuit board, and the button base surrounds and fixes the connector, the button is located on the connector to turn on or off the connector.

BRIEF DESCRIPTION OF THE DRAWINGS

To illustrate the technical solutions according to the embodiments of the present invention or in the prior art more clearly, the accompanying drawings for describing the embodiments or the prior art are introduced briefly in the following. Apparently, the accompanying drawings in the following description are only some embodiments of the present invention, and persons of ordinary skill in the art can derive other drawings from the accompanying drawings without creative efforts.

FIG. 1 is a front view of an atomizing structure according to an embodiment of the present disclosure.

FIG. 2 is a cross-sectional view of the atomizing structure of FIG. 1 .

FIG. 3 is a perspective view of the atomizing structure of FIG. 1 .

FIG. 4 is similar to FIG. 3 , but viewed from another aspect.

FIG. 5 is a perspective view of an atomizing core assembly according to an embodiment of the present disclosure.

FIG. 6 is a top view of FIG. 5 .

FIG. 7 is similar to FIG. 5 , but viewed from another aspect.

FIG. 8 is a cross-sectional view of the atomizing core assembly of FIG. 5 .

FIG. 9 is a schematic view of an atomizing core assembly according to another embodiment of the present disclosure.

FIG. 10 is a schematic view of an atomizing core assembly according to another embodiment of the present disclosure.

FIG. 11 is a perspective of an atomizer according to an embodiment of the present disclosure.

FIG. 12 is similar to FIG. 11 , but viewed from another aspect.

FIG. 13 is a front view of FIG. 11 .

FIG. 14 is a cross-sectional view taken along the line A-A of FIG. 13 .

FIG. 15 is a cross-sectional view of the atomizer in FIG. 13 in another direction.

FIG. 16 is an exploded view of the atomizer of FIG. 13 .

FIG. 17 is similar to FIG. 16 , but viewed from another aspect.

FIG. 18 is similar to FIG. 16 , but viewed from another aspect.

FIG. 19 is a perspective view of an aerosol generating device according to an embodiment of the present disclosure.

FIG. 20 is a cross-sectional view of the aerosol generating device of FIG. 19 .

FIG. 21 is a cross-sectional view of the aerosol generating device of FIG. 19 in another direction.

FIG. 22 is an exploded view of the aerosol generating device of FIG. 19 .

FIG. 23 is similar to FIG. 22 , but viewed from another aspect.

FIG. 24 is similar to FIG. 22 , but viewed from another aspect.

DETAILED DESCRIPTION OF THE EMBODIMENTS

In order to make the above objects, features and advantages of the present disclosure more obvious and easier to understand, the specific embodiments of the present disclosure are described in detail below in combination with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the invention. However, the present disclosure can be implemented in many ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the invention. Therefore, the invention is not limited by the specific embodiments disclosed below.

It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it can be directly on the other element or an intervening element may also be present. When an element is referred to as being “connected” to another element, it can be directly connected to the other element or intervening elements may also be present. The terms “vertical”, “horizontal”, “upper”, “lower”, “left”, “right” and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

In addition, the terms “first” and “second” are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include at least one of the features. In the description of the present disclosure, “multiple” means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the first feature “above” or “below” the second feature may be in direct contact with the first and second features, or the first and second features may be in indirect contact through an intermediate medium. Moreover, the first feature is “above” the second feature, but the first feature is directly above or diagonally above the second feature, or it only means that the horizontal height of the first feature is higher than the second feature. The first feature is “below” of the second feature, which can mean that the first feature is directly below or obliquely below the second feature, or simply that the horizontal height of the first feature is less than that of the second feature.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used herein in the description of the present application are for the purpose of describing specific embodiments only, and are not intended to limit the present application. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.

Referring to FIG. 1 , according to an embodiment of the present application, an atomizing structure 100 includes an atomizing core assembly 110 and a heating element 120. Referring to FIG. 2 , the atomizing core assembly 110 includes an atomizing portion 111 and a guiding portion 112. The heating element 120 is at least partially embedded in the atomizing portion 111, the atomizing portion 111 is fixed in the guiding portion 112. The atomizing portion 111 has an outer wall 116, the guiding portion 112 has an inner wall portion 112A. Referring to FIG. 2 to FIG. 4 , the outer wall 116 is in partial contact with the inner wall portion 112A. The guiding portion 112 is in contact with an atomizing medium, the atomizing medium is transported to the atomizing portion 111 through the inner wall portion 112A and the outer wall 116 in sequence. The outer wall 116 forms a first atomizing surface configured to generate aerosol, and a first air channel 191 is provided between the outer wall 116 and the inner wall portion 112A to transport the aerosol generated by the first atomizing surface.

According to the above-mentioned atomizing structure 100, on the one hand, the first atomizing surface and the liquid-absorbing surface 119 are physically isolated, the heating element 120 indirectly contacts the atomizing medium in a liquid storing chamber through the guiding portion 112, so that there is a long distance between the heating element 120 and the atomizing medium in the liquid storing chamber, so as to effectively isolate a heat transferring, which can avoid the deterioration of the atomizing medium in the liquid storing chamber caused by high temperature, and the entire atomizing structure can have high heating efficiency. On the other hand, the outer wall 116 is in direct contact with the inner wall portion 112A, the guiding portion 112 obtains the atomizing medium through the liquid-absorbing surface 119. The liquid guiding area is great and the liquid guiding is performed in all directions, which can effectively ensure sufficient liquid supply and ensure that the atomizing medium is smoothly transported to the heating element 120 to obtain a large amount of atomization, which solves a problem of poor atomization effect and insufficient smoke volume of conventional atomization.

In one of the embodiments, the guiding portion 112 is provided with a liquid-absorbing surface 119 in contact with the atomizing medium, the liquid-absorbing surface 119 is configured to absorb the atomizing medium into an inside of the guiding portion 112, and the atomizing medium is transported to an inside of the atomizing portion 111 through the inner wall portion 112A and the outer wall 116 in sequence. Further, in one of the embodiments, the guiding portion 112 has an outer wall portion 112B, the outer wall portion 112B is provided with the liquid-absorbing surface 119. The outer wall portion 112B is in contact with the atomizing medium, and the atomizing medium is transported to the inside of the atomizing portion 111 through the outer wall portion 112B, the inner wall portion 112A, and the outer wall 116 in sequence.

In one of the embodiments, as shown in FIG. 2 , the atomizing portion 111 further has an inner wall 115, the heating element 120 is integrally formed with the atomizing portion 111 and is located between the outer wall 116 and the inner wall 115. Further, the inner wall 115 forms a second atomizing surface configured to generate aerosol and a second air channel 192 configured to transport the aerosol generated by the second atomizing surface. In one of the embodiments, the heating element 120 may be a spiral heating wire, a mesh heating wire, and a sheet heating wire. Alternatively, the heating element 120 is provided with a wire extending outside the atomizing portion 111.

In one of the embodiments, the heating element 120 is embedded in the atomizing portion 111. The guiding portion 112 has a cylindrical structure including the inner wall portion 112A and an outer wall portion 112B. The inner wall portion 112A is connected to the atomizing portion 111, the outer wall portion 112B is at least partially in contact with the atomizing medium, so that the atomizing medium is transported from the inside of the guiding portion 112 to the atomizing portion 111, and atomized by the heating element 120 to generate the aerosol.

Further, in one of the embodiments, at least 80% of the outer wall portion 112B, which is the outer surface of the guide portion 112, is configured as the liquid-absorbing surface 119. Further, in one of the embodiments, as shown in FIG. 4 or FIG. 5 , the entire outer surface of the guiding portion 112 is configured as the liquid-absorbing surface 119 or the entire surface of the guiding portion 112 away from the outer wall 116 is configured as the liquid-absorbing surface 119. In one of the embodiments, the guiding portion 112 has a regular circular tubular structure. In one of the embodiments, the entire outer surface of the guiding portion 112 away from the atomizing portion 111 is configured as the liquid-absorbing surface 119. In one of the embodiments, the atomizing portion 111 and the guiding portion 112 are both made of microporous materials with a certain porosity. That is, the inside of the atomizing core assembly 110 has a porous structure, in other words, both the atomizing portion 111 and the guiding portion 112 have a porous structure. The porous structure means a hollow porous body, which exhibits a porous shape at the microscopic level, so as to transport the atomizing medium inside the atomizing core assembly 110 and the atomizing portion 111. Due to the characteristics of the porous structure, the atomizing medium is transported through gravity and capillary action, so that the heating element 120 can heat the atomizing medium in the atomizing portion 111 to generate the aerosol, which can flow out of the atomizing portion 111 through the first air channel 191 and the second air channel 192. Further, a pore diameter of the porous structure is arranged of 100 nanometers to 120 nanometers. In one of the embodiments, the pore diameter of the porous structure is in a range of 1 micrometer to 100 micrometers. In another embodiment, the pore diameter of the porous structure is in a range of 10 microns to 50 microns. The material of the porous structure is ceramic or glass. In one of the embodiments, an internal porosity of the porous structure is arranged of 30% to 90%. In another embodiment, the internal porosity of the porous structure is arranged of 50% to 65%. Such configurations are beneficial to transport the atomizing medium through the inside of the atomizing portion 111.

Further, in one of the embodiments, the porosity of the guiding portion 112 is greater than the porosity of the atomizing portion 111, so that the total amount of the atomizing medium in the guiding portion 112 is supplied sufficiently, and the relatively small porosity of the atomizing portion 111 can prevent leakage of the atomizing portion 111, which is beneficial to guide the atomizing medium into the atomizing portion 111. Further, in one of the embodiments, the inside of the guiding portion 112 is provided with different pores to form a guiding channel, the liquid-absorbing surface 119 transports the atomizing medium to the atomizing portion 111 through the guiding channel, so as to accurately and uniformly transport the atomizing medium to the atomizing portion 111 and the heating element 120, thereby obtaining the uniform aerosol. Such the configuration connects the atomizing portion 111 to the guiding portion 112, and the atomizing medium is transported through a liquid guiding portion, that is, the entire tubular outer wall of the guiding portion 112, a liquid guiding area is great and the liquid guiding is performed in all directions, which can effectively ensure the sufficient supply of atomizing medium to the heating element 120, and the atomizing portion 111 includes a plurality of atomizing areas inside and outside thereof, the amount of atomization is large.

In one of the embodiments, as shown in FIG. 2 and FIG. 4 , a bottom of the atomizing portion 111 is provided with an avoiding groove 114, the first air channel 191 is in fluid communication with the second air channel 192 through the avoiding groove 114. Further, in one of the embodiments, as shown in FIG. 2 , the atomizing portion 111 has a top portion 117, the top portion 117 is configured to cooperate with other components to retain the fluid communication between the first air channel 191 and the second air channel 192. In one of the embodiments, as shown in FIG. 2 and FIG. 3 , the top portion 117 is provided with a flowing area 113, the first air channel 191 is in fluid communication with the second air channel 192 through the flowing area 113. That is, an upper end surface of the atomizing portion 111 is lower than an upper end surface of the guiding portion 112, or a lower end surface of the atomizing portion 111 is higher than a lower end surface of the guiding portion 112, so as to ensure that the air can pass through two smoke channels at the same time, that is, the first air channel 191 and the second air channel 192, and flow out from the two smoke channels. Such configuration is beneficial to avoid blocking the first air channel 191 and the second air channel 192 due to a tightly fitted installation, thereby ensuring that the aerosol generated by the first atomizing surface is transported through the first air channel 191, and the aerosol generated by the second atomizing surface is transported through the second air channel 192.

Further, in one of the embodiments, the first air channel 191 and the second air channel 192 are in communication with two sides of the atomizing core assembly 110, respectively. In this embodiment, a side of the atomizing core assembly 110 is provided with an air inlet end, the first air channel 191 and the second air channel 192 are in communication with the air inlet end, respectively. Another side of the atomizing core assembly 110 is provided with an air outlet end, and the first air channel 191 and the second air channel 192 are in communication with the air outlet end, respectively. Further, in one of the embodiments, the flowing area 113 is provided on the air outlet end, and the avoiding groove 114 is provided on the air inlet end. The configuration of the air inlet end and the air outlet end, that is, the configuration of the flowing area 113 and the avoiding groove 114, enables external air to enter the atomizing area formed by the inner wall 115 and the outer wall 116 due to the action of the heating element 120, so as to form an outer-inner-outer gas circulation channel, so that the aerosol generated by the heating element 120 heating the atomizing medium can be mixed with the external air and then flows out.

In one embodiment, as shown in FIG. 2 and FIG. 3 , the atomizing core assembly 110 is provided with a limiting step 118 above the atomization portion 111 on the guiding portion 112. Further, an outline of the limiting step 118 is smaller than an outline of the guide part 112, so as to form a mounting position. Further, in one of the embodiments, in the direction of gravity, a height of the atomizing portion 111 is less than a height of the guiding portion 112. Further, in one of the embodiments, as shown in FIG. 5 and FIG. 8 , in the direction of gravity, the guiding portion 112 is coplanar with the atomizing portion 111. Such configuration facilitates the combined use of gravity and capillary action to transport the atomizing medium from the inside of the atomizing core assembly 110.

In one embodiment, as shown in FIG. 2 , in the direction of gravity, the height of the atomizing portion 111 is greater than the height of the guiding portion 112 but less than the height of the limiting step 118. The configuration of the limiting step, on the one hand, is beneficial to the sealing connection of a ventilation tube and prevent the atomizing medium from entering the first air channel 191 and the second air channel 192, and on the other hand, it is beneficial to ensure that ensure that the aerosol in the first channel 191 and the second channel 192 enters the ventilation tube, so as to avoid being sealed and abutted to cause communication failure.

In one embodiment, at least two first air channels 191 are provided, and the at least two first air channels 191 are evenly distributed. In one of the embodiments, the atomizing portion 111 has a central axis, and the at least two first air channels 191 are evenly distributed relative to the central axis. Further, in one of the embodiments, as shown in FIG. 5 , the atomizing core assembly 110 is an axisymmetric structure, the atomizing portion 111 has a central axis, two first air channels 191 are provided, each of the first air channels 191 is uniformly arranged relative to the central axis. In one of the embodiments, referring to FIG. 6 and FIG. 7 , the second air channel 192 is cylindrical. In this embodiment, as shown in FIG. 8 , the entire outer wall portion 112B is configured as the liquid-absorbing surface 119.

In one of embodiments, referring to FIG. 4 to FIG. 6 , the outer wall 116 is in surface contact with the outer wall portion 112B, and the outer wall 116 and the outer wall portion 112B are tangent. Optionally, referring to FIG. 9 or FIG. 10 , the outer wall 116 is in surface contact with the inner wall portion 112A, and the outer wall 116 and the inner wall portion 112A are tangent. Further, in one of the embodiments, as shown in FIG. 3 and FIG. 4 , the outer wall 116 and the inner wall portion 112A are arranged in contact with each other through the protruding structure.

In one of the embodiments, as shown in FIG. 5 and FIG. 6 , a shortest distance from the inner wall 115 to the outer wall portion 112B is less than or equal to the sum of a distance from inner wall 115 to outer wall 116 and a distance from inner wall portion 112A to outer wall portion 112B. When the thickness of the atomizing portion 111 is constant, the distance from the inner wall 115 to the outer wall 116 is equal to the thickness of the atomizing portion 111, which can be defined a first thickness. When the thickness of each portion of the guiding portion 112 is the same, the distance from the inner wall portion 112A to the outer wall portion 112B is equal to the thickness of the guiding portion 112, which can be defined the second thickness. The shortest distance from the inner wall 115 to the outer wall portion 112B is less than or equal to the sum of the first thickness and the second thickness. For the embodiment in which the outer wall 116 is in surface contact with the inner wall portion 112A and the contact surface is tangent, as shown in FIG. 10 , the shortest distance from the inner wall 115 to the outer wall portion 112B is equal to the sum of the first thickness and the second thicknesses. For the embodiment where the outer wall 116 is in surface contact with the outer wall portion 112B, and the contact surface is tangent and the outer wall 116 and the outer wall portion 112B are tangent, as shown in FIG. 6 and FIG. 7 , the shortest distance from the inner wall 115 to the outer wall portion 112B is equal to the first thickness and also equal to the second thickness. In this embodiment, the first thickness is equal to the second thickness. That is, the shortest distance from the inner wall 115 to the outer wall portion 112B is less than the sum of the first thickness and the second thickness. Other embodiments are similar to the above description, and will not be repeated. Such the configuration, on the one hand, is beneficial to increase the contact area between the outer wall and the inner wall portion, on the other hand, it is beneficial to improve the transfer efficiency of the atomizing medium from the guiding portion to the atomizing portion, the liquid guiding area is great and the liquid guiding is performed in all directions, which can effectively ensure sufficient liquid supply to obtain a large amount of atomization, which solves the problem of poor atomization effect and insufficient smoke volume of conventional atomization.

Further, at a connecting position of the atomizing portion 111 and the guiding portion 112, the outer surface of the atomizing portion 111 is tangent to the inner surface of the guiding portion 112 or is located between the inner wall portion 112A and the outer wall portion 112B, and the distance from the heating element 120 to the outer wall portion 112B is greater than the distance from the inner wall portion 112A to the outer wall portion 112B, so as to ensure that the heating element 120 maintains a distance from the atomizing medium in the liquid storing chamber. Such configuration enables the heating element 120 to be heated evenly, so as to ensure the uniformity of the heating of the atomizing medium, and ensure the consistency of the atomized aerosol. In addition, the heating element 120 can indirectly contact the atomizing medium in the liquid storing chamber to effectively isolate the heat transfer, which is beneficial to avoid the deterioration of the atomizing medium in the liquid storing chamber caused by high temperature.

In order to prevent the atomizing medium from leaking out, in one of embodiments, in the direction of gravity, the surface of the bottom of the atomizing portion 111 and/or the guiding portion 112 is provided with a leak-proof sealing layer. Further, in one of the embodiments, the leak-proof sealing layer is a coating or a sheet. In one of the embodiments, the bottom of the atomizing portion 111 and/or the guiding portion 112 is covered with a non-oleophobic medium, which may include coatings, seals and other non-oleophobic materials to prevent the atomizing medium stored in the atomizing portion 111 and/or the guiding portion 112 from leaking out of the atomizing core assembly 110. Further, in one of the embodiments, the leak-proof sealing layer is located on the position of the guiding portion 112 except the liquid-absorbing surface 119 and the position contacting the atomizing portion 111, so as to prevent the atomizing medium from leaking.

In one of the embodiments, an atomizer is provided including a liquid storing structure 200 and the atomizing structure 100 according to any one of the above-mentioned embodiments. In one of the embodiments, as shown in FIG. 11 and FIG. 12 , the atomizer includes the liquid storing structure 200 and the atomizing structure 100 located in the liquid storing structure 200. Referring to FIG. 13 and FIG. 14 , the liquid storing structure 200 is provided with a liquid storing cavity 260 configured to accommodate the atomizing medium, and the guiding portion 112 or the liquid-absorbing surface 119 is configured to contact the atomizing medium. The aerosol generated by the heating element 120 passes through the first air channel 191 and the second air channel 192, and flows out through the liquid storing structure 200.

Further, as shown in FIG. 19 , the atomizer further includes a nozzle structure 300. In one of embodiments, as shown in FIGS. 19 and 20 , the atomizer includes the liquid storing structure 200, the nozzle structure 300, and the atomizing structure 100 in any one of the above-mentioned embodiments. The liquid storing structure 200 is provided with a liquid storing cavity 260 configured to accommodate the atomizing medium, and the liquid-absorbing surface 119 is configured to contact the atomizing medium. The aerosol generated by the heating element 120 passes through the first air channel 191 and the second air channel 192 to be in fluid communication with the suction nozzle structure 300. That is, the nozzle structure 300 is in fluid communication with the aerosol generated by the atomizing structure 100. The liquid storing cavity 260 is configured to store atomizing medium, such as e-liquid, essence, spices, etc. The atomizing structure 100 is provided with a ventilation tube 150 configured to transport the aerosol for inhalation. The ventilation tube 150 is provided with a main air channel 193. In one of the embodiments, the nozzle structure 300 is sleeved on the liquid storing structure 200, the liquid storing structure 200 is located on the atomizing structure 100, the atomizing structure 100 is partially located in the liquid storing structure 200. In one of the embodiments, referring to FIG. 20 , the nozzle structure 300 is provided with a flowing opening 301, the nozzle structure 300 is in fluid communication with the air channel 190, the first air channel 191, and the second air channel 192 through the flowing opening 301. In another embodiment, the nozzle structure 300 is in fluid communication with the main air channel 193 through the flowing opening 301.

In one of the embodiments, as shown in FIG. 13 and FIG. 14 , the liquid storing structure 200 includes an upper sealing element 210, a lower sealing element 220, and a housing 240. Further referring to FIG. 16 , the housing is provided with a mounting cavity 241. The upper sealing element 210 covers on the housing 240 and is partially mounted in the mounting cavity 241. The lower sealing element 220 is mounted in the mounting cavity 241. The atomizing structure 100 is further provided with a middle sealing element 130. One end of the ventilation tube 150 tightly abuts against the upper sealing element 210, the other end of the ventilation tube 150 tightly abuts against the middle sealing element 130, and the ventilation tube 150 tightly abuts the middle sealing element 130, the atomizing core assembly 110, the lower sealing element 220 and the housing 240 sequentially through the middle sealing element 130.

In one of the embodiments, as shown in FIG. 14 and FIG. 15 , the ventilation tube 150 is at least partially located in the housing 240, and the liquid storing cavity 260 is formed in the mounting cavity 241 and located between in the housing 240 and the ventilation tube 150, the upper sealing element 210 is provided with a first communicating opening 211, the main air channel 193 of the ventilation tube 150 is in fluid communication with the first air channel 191 and the second air channel 192 to transport the aerosol, and the aerosol in the main air channel 193 flows out through the first communicating opening 211. For the embodiment with the nozzle structure 300, the ventilation tube 150 is respectively in fluid communication with the first air channel 191, the second air channel 192, and the nozzle structure 300 to transport the aerosol. That is, the main air channel 193 is in fluid communication with the first air channel 191, the second air channel 192 and the nozzle structure 300 to transport the aerosol, and the aerosol flows out through the first communicating opening 211 and the nozzle structure 300.

Further, in one of the embodiments, as shown in FIG. 14 and FIG. 15 , the atomizer further includes the middle sealing element 130. The middle sealing element 130 is provided with a lower end cavity configured to accommodate the atomizing core assembly 110 or the atomizing portion 111, such as, the flowing area 113. Alternatively, the middle sealing element 130 is provided with a lower end cavity configured to accommodate the limiting step 118, so as to facilitate assembly and sealing, and prevent the atomizing medium from entering into the first air channel 191 and the second air channel 192. In one of embodiments, the atomizer or the atomizing structure 100 further includes the ventilation tube 150, the ventilation tube 150 is inserted into an upper cavity provided on the middle sealing element 210, the upper cavity is in fluid communication with the lower end cavity, so that the aerosol can flow out through the ventilation tube 150 or the air channel 190. The atomizer further includes the lower sealing element 220 configured to fix the atomizing core assembly 110 and cooperates with the middle sealing element 210 to seal the liquid storing cavity 260. Referring to FIG. 16 , the lower sealing element 220 is further provided with an air inlet channel 221 in communication with an air inlet 243. Further, in one of the embodiments, the middle sealing element 210 is provided with the flowing area 113 or the lower sealing element 220 is provided with the avoiding groove 114, so as to ensure that the air can pass through two smoke channels at the same time and flow out from the two smoke channels, which can also achieve the effect of gas circulation.

In one of the embodiments, as shown in FIG. 14 and FIG. 15 , the atomizing structure 100 further includes a mounting element 160 and a sealing sleeve 170. The guiding portion 112 is provided with a wire. The mounting element 160 is sleeved on the wire and located in the lower sealing element 220, the sealing sleeve 170 is sleeved on the lower sealing element 220. Optionally, as shown in FIG. 15 and FIG. 17 , the lower sealing element 220 is provided with a mounting groove 222, the sealing sleeve 170 is sleeved in the mounting groove 222. The mounting element 160, the lower sealing element 220 and the sealing sleeve 170 cooperate to enable the lower sealing element 220 to tightly abut against the housing 240 to seal the liquid storing cavity 260, so that the atomizing medium in the liquid storing cavity 260 only contacts the liquid-absorbing surface 119 of the guiding portion 112. In this embodiment, the lower sealing element 220 is sleeved on the mounting element 160, the sealing sleeve 170 is sleeved in the lower sealing element 220.

In one of the embodiments, the communication of the channels is shown in FIG. 15 , the air channel 190 includes the first channel 191, the second channel 192 and the main channel 193. Both the first channel 191 and the second channel 192 are in fluid communication with the main air channel 193 for the aerosol to flow out. Further, a gap is provided between the ventilation tube 150 and the atomizing portion 111 through the top portion 117 and the limiting step 118, so that the second air channel 192 is in fluid communication with the main air channel 193 through the gap. That is, a diameter of the ventilation tube 150 and a diameter of atomizing portion 111 can be the same or different, and the ventilation tube 150 and the atomizing portion 111 are not in contact, so that a space communicating with the second air channel 192 is formed between the ventilation tube 150 and the atomizing portion 111. The space can be used as a part of the main channel 193, that is, the main channel 193 is in communication with the second air channel 192. In this way, two atomizing surfaces, the first air channel 191, and the second air channel 192 are formed on the inner wall and the outer wall of the atomizing portion 111, so that a large amount of atomized aerosol can be obtained.

Further, as shown in FIG. 15 , one end of the ventilation tube 150 abuts against the limiting step 118 through the middle sealing element 130 and an upper end of the guiding portion 112. The limiting step 118 cooperates with the ventilation tube 150 to retain the fluid communication between the first air channel 191 and the second air channel 192. The above-mentioned structure effectively prevents the atomizing medium in the liquid storing cavity 260 from entering the atomizing portion 111 from a position other than the liquid-absorbing surface 119 through the middle sealing element 130 and its connection relationship, and also prevents the atomizing medium from being mixed into the ventilation tube 150 and the main air channel 193.

Further, as shown in FIG. 15 , the ventilation tube 150 passes through the middle sealing element 130 to enable the main air passage 193 to be in communication with the first air passage 191 and the second air passage 192. On the one hand, the bottom of the atomizing core assembly 110 abuts against the mounting element 160 and the lower sealing element 220, and abuts against the sealing sleeve 170 and the housing 240 through the lower sealing element 220. On the other hand, the outer wall of the guiding portion 112 abuts against the lower sealing element 220, and abuts against the housing 240 through the lower sealing element 220, so that the housing 240 tightly abuts against the lower sealing element 220 and the atomizing core assembly 110, and the wire of the guiding portion 112 is sealed and isolated from the liquid storing cavity 260, so that the end of the liquid storing cavity 260 is effectively sealed. In this embodiment, the main air channel 193 is in fluid communication with the first air channel 191, and the main air channel 193 is in fluid communication with the second air channel 192.

The sealing of the liquid storing cavity 260 is important. Since the ventilation tube 150 extends through the liquid storing cavity 260, it is necessary to seal the two ends of the housing 240 and the liquid storage chamber 260. In this embodiment, on the one hand, the middle sealing element 130, the ventilation tube 150 and the atomizing core assembly 110 fit tightly to prevent the atomizing medium in the liquid storing cavity 260 from leaking into the first air channel 191 and the second air channel 192 though the gap between the ventilation tube 150 and the middle sealing element 130. On the other hand, the lower sealing element 220 cooperates with the sealing sleeve 170 and the mounting element 160 to apply pressure to an end of the housing 240, so that it is tightly sleeved on the atomizing core assembly 110. A sealing system is formed as a whole, so as to prevent the atomizing medium in the liquid storing cavity 260 from leaking out of the atomizer or into a position of the wire of the guiding portion 112 through the gap between the mounting element 160, the sealing sleeve 170 and the housing 240. Such configuration achieves an effective seal for the housing 240 and one end of the liquid storing cavity 260.

In one of the embodiments, as shown in FIG. 16 , the housing 240 is provided with the mounting cavity 241, the ventilation tube 150 is at least partially accommodated in the mounting cavity 241, the liquid storing cavity 260 is formed in the mounting cavity 241. That is, the liquid storing cavity 260 is a part of the mounting cavity 241. In this embodiment, the liquid storing structure 200 is further provided with a sealing pad 230 located on the upper sealing element 210. The sealing pad 230 is provided with a second communicating opening 231 corresponding to the first communicating opening 211. The main air channel 193 is sequentially in communication with the first communication portion 211 and the second communication portion 231 to transport the aerosol, or the main air channel 193 is sequentially in communication with the first communicating opening 211, the second communicating opening 231 and the nozzle structure 300 to transport the aerosol.

Further, in one of the embodiments, the upper sealing element 210 is further provided with at least one first liquid injecting hole 212 in communication with the liquid storing cavity 260. The first liquid injecting hole 212 is configured to inject the atomizing medium to the liquid storing cavity 260. Further, in one of the embodiments, as shown in FIG. 15 and FIG. 16 , the upper sealing element 210 is further provided with at least one first liquid injecting hole 212, the sealing pad 230 is provided with at least one second liquid injecting hole 232 corresponding to the first liquid injecting holes 212. The second liquid injecting hole 232 is in communication with the liquid storing cavity 260 through the first liquid injecting hole 212. Referring to FIG. 20 , the nozzle structure 300 blocks each of the first liquid injecting holes 212 and/or each of the second liquid injecting holes 232, and only sequentially communicates with the second communicating openings 231, the first communicating opening 211 and the main air channel 193 through the flowing opening 301.

In one of the embodiments, as shown in FIG. 17 and FIG. 18 , the housing 240 is provided with at least two electrode mounting seats 242, each of the electrode mounting seats 242 is provided with an electrode element 140. The wire is electrically connected to the electrode element 140 in the electrode mounting seat 242. The housing 240 is provided with at least one air inlet 243, the air inlet 243 is in fluid communication with the first air channel 191 and the second air channel 192, respectively. In one embodiment, the atomizer is further provided with the air inlet 243 and a flowing opening 301, the air inlet 243 is in fluid communication with both the first air channel 191 and the second air channel 192. The number of air inlets 243 is not limited, for example, the atomizer may include two air inlets 243, the two air inlets 243 are in communication with the first air channel 191 and the second air channel 192, respectively. The flowing opening 301 is in fluid communication with the air channel 190 or the main air channel 193, for example, the flowing opening 301 is in fluid communication with the main air channel 193 in the ventilation tube 150, so that the aerosol flows out from the flowing opening 301 301 through the ventilation tube 150.

In one of the embodiments, as shown in FIG. 19 , an aerosol generating device is provided including a power supply structure 400 and the atomizer described in any one of the above-mentioned embodiments. The power supply structure 400 is electrically connected to the atomizer for supplying power to the atomizer. The atomizer includes the atomizing structure 100, the liquid storing structure 200 and the nozzle structure 300. The atomizing structure 100 and the liquid storing structure 200 are shielded by the nozzle structure 300 and the power supply structure 400. Referring to FIG. 20 , the power supply structure 400 includes a casing 410, a bracket 420, a battery 430, a circuit board 440, a control element 450, a connecting end 460 and a bottom case 470. Referring to FIG. 21 and FIG. 22 , the casing 410 is sleeved on a part of the housing 240, the nozzle structure 300 is sleeved on a part of the housing 240, the upper sealing element 210, and the upper sealing element 210. The nozzle structure 300 blocks the first liquid injecting hole 212 and the second liquid injecting hole 232. The bracket 420 is fixed in the casing 410, the battery 430 is mounted to the bracket 420 and electrically connected to the electrode element 140. An airflow gap in fluid communication with the air inlet 243 is formed between the bracket 420, the battery 430, and the casing 410 to ensure smooth airflow, so that the aerosol flows to the flowing opening 301 according to the airflow direction P. Such configuration forms a path for transporting the aerosol. The circuit board 440 is fixed to the bracket 420 and electrically connected to the battery 430. The control element 450 is fixed to the circuit board 440 and electrically connected to the battery 430 through the circuit board 440. The connecting end 460 is fixed to the circuit board 440 and is electrically connected to the battery 430 through the circuit board 440, the connecting end 460 extends through the bottom case 470 and is exposed to the outside, so as to access an external connection terminal such as a charging terminal. The bottom case 470 is plugged and fixed to the casing 410, a part of the bracket 420 is located in the bottom case 470, and the rest of the bracket 420 is located in the casing 410.

Referring to FIG. 23 and FIG. 24 , the control element 450 includes a button 451, a button base 452 and a connector 453. The button 451 is mounted to the button base 452 and exposed outside the bottom case 470, the button base 452 is fixed to the circuit board 440. The connector 453 is electrically connected to the battery 430 through the circuit board 440, and the button base 452 surrounds and fixes the connector 453, the button 451 is located on the connector 453 to turn on or off the connector 453.

It should be noted that other embodiments of the present application also include an atomizing structure, an atomizer, and an aerosol generating device formed by combining the technical features of the above embodiments.

The foregoing descriptions are merely specific embodiments of the present invention, but are not intended to limit the protection scope of the present invention. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present invention shall all fall within the protection scope of the present invention.

The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements and improvements made within the spirit and principles of the above-mentioned embodiments shall be included within the protection scope of this technical solution. 

What is claimed is:
 1. An atomizing structure, comprising: an atomizing core assembly comprising an atomizing portion and a guiding portion, wherein the atomizing portion is fixed in the guiding portion, the atomizing portion has an outer wall, the guiding portion has an inner wall portion, and the outer wall is in partial contact with the inner wall portion, the guiding portion is in contact with an atomizing medium, and is configured to transport the atomizing medium to the atomizing portion through the inner wall portion and the outer wall in sequence, the outer wall forms a first atomizing surface configured to generate aerosol, and a first air channel for transporting the aerosol is provided between the outer wall and the inner wall portion; and a heating element at least partially embedded in the atomizing portion.
 2. The atomizing structure according to claim 1, wherein the outer wall is in surface contact with the inner wall portion, and the outer wall and the inner wall portion are tangent.
 3. The atomizing structure according to claim 1, wherein a shortest distance from an inner wall of the atomizing portion to an outer wall portion of the guiding portion is less than or equal to the sum of a distance from the inner wall to the outer wall and a distance from inner wall portion to the outer wall portion.
 4. The atomizing structure according to claim 1, wherein at least two first air channels are provided.
 5. The atomizing structure according to claim 4, wherein the at least two first air passages are evenly distributed.
 6. The atomizing structure according to claim 4, wherein the atomizing portion has a central axis, and the at least two first air channels are evenly distributed relative to the central axis.
 7. The atomizing structure according to claim 1, wherein the atomizing portion has an inner wall, the inner wall forms a second atomizing surface and a second air channel configured to transport the aerosol generated on the second atomizing surface.
 8. The atomizing structure according to claim 7, wherein a bottom of the atomizing portion is provided with an avoiding groove, the first air channel is in fluid communication with the second air channel through the avoiding groove.
 9. The atomizing structure according to claim 7, wherein a top portion of the atomizing portion is provided with a flowing area, the first air channel is in fluid communication with the second air channel through the flowing area.
 10. The atomizing structure according to claim 7, wherein the atomizing core assembly is provided with a limiting step above the atomization portion on the guiding portion.
 11. An atomizer, comprising a liquid storing structure and the atomizing structure according to claim 1, wherein the liquid storing structure is provided with a liquid storing cavity configured to accommodate the atomizing medium, and the guiding portion is in contact with the atomizing medium; the aerosol generated by the heating element passes through the first air channel and the second air channel, and flows out through the liquid storing structure.
 12. The atomizer according to claim 11, wherein the liquid storing structure comprises an upper sealing element, a lower sealing element, and a housing, the housing is provided with a mounting cavity, and the upper sealing element covers the housing and is partially mounted in the mounting cavity, the lower sealing element is mounted in the mounting cavity; the atomizing structure is provided with a middle sealing element and a ventilation tube, one end of the ventilation tube tightly abuts against the upper sealing element, the other end of the ventilation tube tightly abuts against the middle sealing element, and the ventilation tube abuts against the middle sealing element, the atomizing core assembly, the lower sealing element and the housing sequentially through the middle sealing element.
 13. The atomizer according to claim 12, wherein the ventilation tube is provided with a main air channel, the upper sealing element is provided with a first communicating opening, the ventilation tube is at least partially located in the housing, the liquid storing cavity is formed in the mounting cavity and located between in the housing and the ventilation tube, the main air channel is in fluid communication with the first air channel and the second air channel to transport the aerosol, and the aerosol in the main air channel flows out through the first communicating opening.
 14. The atomizer according to claim 12, wherein the atomizing structure further comprises a mounting element and a sealing sleeve, the guiding portion is provided with a wire, the lower sealing element is provided with a mounting groove , the mounting element is sleeved on the wire and located in the lower sealing element, the sealing sleeve is sleeved on the lower sealing portion or sleeved in the mounting groove, the mounting element, the lower sealing element, and the sealing sleeve cooperate to enable the lower sealing element to tightly abut against the housing to seal the liquid storing cavity, so that the atomizing medium in the liquid storing cavity only contacts the liquid-absorbing surface of the guiding portion.
 15. The atomizer according to claim 12, wherein the housing is provided with at least two electrode mounting seats, each of the electrode mounting seat is provided with an electrode element, the wire is electrically connected to the electrode element in the electrode mounting seat; the housing is provided with an air inlet, the air inlet is in fluid communication with the first air channel and the second air channel, respectively.
 16. An aerosol generating device, comprising a power supply and the atomizer according to claim 10, wherein the power supply is electrically connected to the atomizer for supplying power to the atomizer.
 17. The aerosol generating device according to claim 16, wherein the atomizer further comprising a nozzle structure, the power supply structure comprises a casing, a bracket, a battery, a circuit board, a control element, a connecting end, and a bottom case, the casing is sleeve on a part of the housing, the nozzle structure is sleeve on a part of the housing, the upper sealing element, and the upper sealing element, the nozzle structure blocks the first liquid injecting hole and the second liquid injecting hole, the bracket is fixed in the casing, the battery is mounted to the bracket and is electrically connected to the electrode element, an airflow gap in fluid communication with the air inlet is formed between the bracket, the battery and the casing.
 18. The aerosol generating device according to claim 17, wherein the control element comprises a button, a button base and a connector, the button is mounted to the button base and exposed outside the bottom case, the button base is fixed to the circuit board, the connector is electrically connected to the battery through the circuit board, and the button base surrounds and fixes the connector, the button is located on the connector to turn on or off the connector. 